Trail Running Calendar United Kingdom 2026-2027

Welcome to the most comprehensive guide to trail races in the UK for 2026-2027! Our curated list features an impressive 2282 trail runs across the enchanting landscapes of Scotland, and Wales. From the iconic trails of London's green outskirts to the rugged terrains near Birmingham, from Glasgow's scenic paths to Liverpool's historic routes, we've got every trail enthusiast covered.

Whether you're a seasoned trail runner looking for your next challenge or a newbie eager to explore the world of off-road running, our calendar is your one-stop solution. Dive deep into the details by searching for a specific location or simply browse through to discover new trail runs. Looking for all running events? Check out the complete Running Calendar United Kingdom on running.life.

Three community races at Harcourt Hill on 26 Sep 2026 from a 10k off road course to a 1k fun run, organised by the 4th Oxford Scout Group with medals, prizes and water stations for participants.

Guto Nyth Bran is a 9.6 km fell race near Caerphilly with 396 m of climb on a partially marked course. It takes place in late September, has a short walk from parking to the start, and charges £6 online or £8 on the day.

A fully waymarked, supported sea-to-summit ultramarathon from Caernarfon Castle to Bron y Feds Uchaf, covering 29 miles (47 km) with about 5,600 ft ascent. Pit stops, professional medical cover and GPS tracking are provided.

A charity relay in Malham on 27 September 2026 with mixed teams formed on the day and an entry fee of £5 per person. The route climbs near the summit of Cawden Hill then returns on a direct descent.

Trail race at Margam Country Park offering 5 km and 10 km routes through woodland with castle views. The event features chip timing, water stations, a finisher's medal and parking included with entry.

Trail running festival at Dalkeith Country Park near Edinburgh offering distances from a family mile to an ultra marathon. Courses use woodland trails, firm paths and grassy sections, and one well controlled dog per runner is allowed.

Experience an autumn run through scenic pumpkin fields and farm tracks in Colchester. With 10k, 5k, and 1k distances, this flat off road event features chip timing and a family friendly event village.

A forest trail half marathon in late September with an officially measured 13 miles 192.5 yards course, no road crossings, water stations about every 5 km and medals for finishers; organised by the Rotary Club for charity.

Explore the ancient trails and historic landscapes of Cranborne Chase starting from Salisbury Racecourse. Choose between marathon half marathon or 10k distances through scenic downland and woodland paths.

Trail running at Billingford Lakes on the Wensum Way with a 5.3 km out-and-back lap, lap-based half and ultra options, on-site aid, included parking, bespoke medals, and a finish coffee and cake.

A village based fell race on 27 September 2026 covering 11.3 km with 415 m ascent. The course is marshalled and partially flagged, basic waterproof kit is required, and prizes are awarded by age category and teams.

A 5 mile mixed terrain race around the southern fringes of Knaresborough, featuring trails, woodland and riverside tarmac. Single lap format, prizes for top finishers and fundraising for Dementia Forward.

A BM fell race around Wirksworth covering 13.7 km with 457 m of ascent, run on varied quarry, trail and pasture terrain under FRA licence. The route includes steep climbs, Harborough Rocks and views toward Carsington Water.

A 10 km trail run through the grasslands and woodlands of Rising Sun Country Park on 27 September 2026, with mixed terrain and a canicross option allowing one well controlled dog per runner.

Trail Half Marathon and 10K through Delamere Forest on marked, technical woodland trails with chip timing, aid stations and a canicross option, plus eco-friendly measures and on-site race HQ at the visitor centre.

Run Sandringham on 27 September 2026 features a Half Marathon, 5K and Community Mile around the Sandringham Estate. The event includes chip timing for the Half and 5K, water stations, medical support and on site parking.

A community charity event on Sunday 27 September 2026 near Grantchester offering chip-timed 10k and 3k courses through farmland, medals for all finishers, trophies, and fundraising for Maggie’s and Addenbrooke’s Charitable Trust.

Trail running in Blackpool on a 10K loop with longer race options, views of Marton Mere and Blackpool Zoo, drink stations and bespoke finisher medals.

A 10 mile trail race at Eridge Park in Tunbridge Wells featuring steep, narrow climbs, muddy sections and scenic views. Finishers receive a memento and are offered a pint and cake at the finish.

A five mile trail race in Worsley on 27 September 2026 organised by Swinton Running Club. Affiliated and unaffiliated ticket types are listed and on the day entry is available for an extra two pounds subject to availability.

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